Method of producing carbon-black



. RUMBAVRGER. METHOD 0F PRODUCING CARBON BLACK.

APPLlcArxoN FILED MAR. 9', |921.

RG SSSMQEQQ Y GER, a citizen of BRADLEY W. RUMBABGER, F FAIRBANKS,

0F FAIRIBANKS,

cannon COMPANY, WARE PATENT LoursrANA, Assioma 'ro s ou'rxlmr LOUISIANA, A coaroaArIoN or DELA.

METHOD 0F PEODUCING CARBON-BLACK.

Lacasse;

To all whom it may concern:A

Be it known that I, Brauner W. RUMBAR- the United lStates, and a resident vof Fairbanks, in the vparish of Ouachita and State of Louisiana, have invented certain new and useful Improvements in Methods of Producing Carbon-Black, of

which th e following is a specification.

y invention relates to themanufactureof hydrocarbon gas especially r suitable for use in the burner of an apparatus` for producing carbon black by combustion" of said gas or for other uses.

The object of the invention is to obtain from hydrocarbon gas a gas of diminished rogen and of augmented carbon content and also to produce at the same time hydrochloric acid gas and other by-products such :for instance aschloroform.

A further object of the invention is to increase the output of carbon black from the carbon black apparatus resulting'from the burning of the hydrocarbon gas beyond that which 1t is possible to secure by the use of the hydrocarbon gas heretofore employed and particularly beyond the out ut resulting from the burning of a natural liydrocarbon gas as heretofore practised in the art.

This result is attained according to my present invention by reducing the hydrogen content of the gas to be burned, thereby giving a cooler flame so that the carbon element will not be as readily consumed at the burner.

To further enhance the desired effect of depositing carbon black at the burner, my invention provides for enriching the gas as to its carbon content while also diminishing the hydrogen content for the purpose stated.

o carry out my invention: chlorin, a hydrocarbon gas preferably natural gas and a liquid hy oil or derivative thereof, such as fuel oil, gasolene, crude oil, kerosene, mineral seal oil, etc., are brought together in a suitable ment of the natural gas and the liquid h drocarbon, while at the same time part oft e Specification of Letters Patent.,

gen element drocarbon preferably a mineral lamp, the chemical of hy- Patenten Dee. 27,1921.

Application filed March 9, 1921. Serial No. 451,014.

carbon element of the li uid h drocarbon (which has been q y partly robbed of its hydroby the action of the chlorin freeing,l part of the carbon up w1t the gaseous hydrocarbon which has also been partiell robbed of its hydrogen element). As willybe'seen, the practical result is a derivation of a hydrocarbon as leaner. as to its hydrogen element and ric er as to its carbon element than the gas introduced together with the production of hydrochloric acid as. These two gases, to wit: the carbon enriched hydrocarbony or-natural gas partially robbed of its hydrogen and the h 'ydrochloric acid gas are taken from the c lorinating chamber through -suitable washthereb mg towers or scrubbers where the hydrochloric acid gas is washed out and converted into hydrochloric acid, leaving the hydrocarbon gas enriched in carbon and diminished as to Aits hydrogen content to proceed to the stand quired. y

lThe accompanying drawings show 1n side. elevation apparatus of `typicalf for m thatl may be employed in carrying out my invention.

C indicates a chlorinating chamber of any suitable form or construction "preferably provided with a' catalyst such as charcoal and' glass windows for ultra-violet li ht as indicated,- through which chamber the iquld hydrocarbon may be circulated, being taken in at the liquid inlet and drawn out bythe liquid 4outlet in constant circulation to whlch the liquid hydrocarbon may be supplied or added as the amount diminishes under the actions taking place in the chlorinating chamber.

`D is the inlet through which chloringas and hydrocarbon as maybe introduced into the chlorinatingc amber and caused to ass through the liquid hydrocarbon while 1s the outlet for the resultant gases. The hydrochloric acid gas and the hydrocarbon gas resulting from the action in the chlorinating chamber as already described pass from thc outlet E preferably through a su1twhere a hydrocarbon gas.

is picked l Q j p l neonata able condensing coil and then through one the relative amount of chlorin passed into or more scrubbers marked A and B of any the chlorinator should be reduced.l @n the particular or suitable form for removalbf other hand should the production of black the hydrochloric acid gas and conversion fall od an increase in the relative amount 5 thereof into'hydrochloric acid, leaving the of chlorin introduced into the chlorinator .70 hydrocarbon'gas of increased carbon content With the hydrocarbon gas would be indiand diminished hydrogen content, which cated. v passes by Way of the outlet F, for any delit Will therefore be understood that the siredA uses as for instance the production of invention is not limited to the particular 'io carbon black by burning the same in a gas proportions of chlorin and hydrocarbon gas 7.5 black plant. rThe relative amounts of above stated but .the same Would vary to chlorin gas land hydrocarbon gas introduced some extent with the particular natural or into the chlorinating chamber may be regother hydrocarbon gas subjected to the treatulated in any desired manner, as for inment and also probably to some extent upon iev stance by using a liquid chlorin supply tank the particular hydrocarbon liquid used in 80 `of angl desired form known in the art. the chlorinator.

ll o not-limit myself to the use of any What ll claim as my invention 'is particular hydrocarbon gas but find in `pracl. The process of treatingaiatural hydrotice that good results are obtained from the carbon gas to diminish the hydrogen content 2o use of the natural gas Obtained from the and increase. the carbon content thereof, 85

ground at Fairbanks, Louisiana, and conconsisting in bringing said gas, chlorin and gisting of90% methane CIL, 7% etbane liquid hydrocarbon together in a chlorinat- 02H8, 2.5% nitrogen N and 0.5% caring Chamber,

-bon dioxid C02. his gas l haveused as 2. rll`he process or treating a natural hydro' 25 obtained from the ordinary gasolene plant carbon gas to increase the carbon content to employed for obtaining the gasolene from and to diminish the hydrogen'content theref the natural gas in conjunction with mineral of and at the Same time produce hydro. seal oil. chloric acid gas, consisting in bringing said Using a hydrOCalbOl gas 0f abOut the natural gas, chlorin and a liquid hydrocaru@ 3o above ColStltutlOn l find 111 practicel that bon togethery in a chlorinating chamber, e5 good results may be Obtalned by Supplymg Washing out the hydrochloric acid gas and about onepound of chlorin for passage as pagsing the remaining gas on for use as gas to the chlorinator to one thousand feet hydrooabon gas havingl an increased Carof the natural gas. When the gas is treated bon. Content, i

l se as descrlbed and burned in the gas black e. The process of obtaining from ahydrcico plant l am enabled t0 Obtam greatly m9 carbon gas a gas enriched in carbon and of creased uantities of gas black @Ver What diminished hydrogen content together with CM1 l0@ 0 tamed TOHI the natural ges HH- hydrochloric acid gas, consisting in bringj treated. The enhanced'output of the caring Said hydrocarbon gas, a liquid hydro- `o0 NDC? black 1S Probably du@ 1n it gfflte 0l lcarbon and chlorin together in a chlorinat- 10k vless part to the fact that the treatment of '1n Chamber, Washing out the hydrochloric the natural or other gas prior to burning by amd gas and passim the, remaining gas on removmghefeffom Part 0f the hydmgen for use as hydrocar on gas having an inelement gives a much cooler iiame in a carcreased Carbon Content, 31:1 bon black Plant S0 that the @P10011 4. |The method of increasing the output i1 @einem -Wlu 110i bf? COlSllmd 'es wir of carbon black derived from the burning ldly When the gaS 1S burned t0 prOdilCe of hydrocarbon gas, consisting in diminishthe carbon black .and is also due to agreater ing the hydrogen content of Said gas and of leSS eXtellt t0 the enrichment of 'the then burning said gas to produce the carbon 5o natural or other gas as to its carbon element, black, Y M

in the actions described as resulting from 5, Tho method of increasing the output of bringing the hydrocarbon gasl and the carbon black derivedfrom the burning of a chlorin together in the chlorinating chamnatural hydrocarbon gas, consisting in reber, chloroform is produced by the constant ducing the hydrogen content thereof, and et action of the chlorin and this may be rethen burning said gas to produce carbon if covered as a by-product'in any suitable forni black. v i of trap .introduced as indicated at G in the 6. The method of increasing the output liquid circulation of the liquid hydrocarbon. of carbon black derived from a natural The appearance of .the dame at the burner hydrocarbon gas, consisting in reducing the eo may be used as an indication Whether `the hydrogen content and increasing or aug: l best amount of chlorin for the particular menting the carbon content thereof and then hydrocarbon as introduced therewith is burning said gas to produce carbon black. being used. flame showing a greenish 7. The method of enriching a hydrocare tinge would indicate the presence of chlorin bon gas by increasing the carbon content @e 1n the resultant gas and. would :indicate that thereof, consisting in bringing Seid E215 eind of carbon black derived from action of chlorin in a. chlorinating chamber, removing the hydrochloric acid and chloroform and burnin the remaining gas to prol0 duce carbon blac.

Signed at New York, in the county of New York and State of New York, this 23rd day of February, A. D. 1921.

BRADLEY W. RUMBARGER.

Witness:

W. R. WARNER. 

